A collection of essays on the various aspects of the legal sources of international law, including theories of the origin of international law, explanation of its binding force, normative hierarchies and the relation of international law and politics.

This Oxford Handbook examines the sources of international law, how the understanding of sources changed throughout the history of international law; how the main legal theories understood sources; the relationship between sources and the legitimacy of international law; and how sources differ across the various sub-areas of international law.

Many different, and even opposite, meanings are ascribed to the term `sources' of international law. The author of this work goes back to the meaning of the term `source' in general (spring or well) and analyses in detail the various sources of international law. He first explains the sources of general, and then those of particular international law. He starts with general principles of law, which is followed by common features of customary process of whatsoever kind, and then by general and by particular customary law. Custom will be followed by unilateral acts of States and with opposable situations in international law which are closely linked with this kind of sources of international law. The explanation ends with treaties in regard to which there are the least doctrinal controversies. The explanation cannot be quite homogeneous. There are still deep doctrinal misunderstandings in respect to general principles of law and of unilateral acts of States. The author therefore offers a critical analysis of representative views of other authors and tries to reach solutions to problems presented. He also gives a systematic explanation of recent pronouncements of international courts and tribunals with regard to customary law, and he examines the specific solutions prescribed in the 1969 Vienna Convention on the Law of Treaties.

Because of its unique nature, the sources of international law are not always easy to identify and interpret. This book provides an ideal introduction to these sources for anyone needing to better understand where international law comes from. As well as looking at treaties and custom, the book will look at more modern and controversial sources.

This book addresses the disparity between positive non-treaty law and its scholarly assessment in the area of moral concepts, understood as altruistic as opposed to reciprocal legal obligations. It shows how scholars are generously willing to assert the existence of a rule of international law, thereby moving further away from actual state practice, not taking into account the factors of legal rhetoric and the core survival interests of the state in the formation of custom and general principles of law. The main argument is that such moral concepts can simply not manifest themselves as non-treaty sources of international law from a dogmatic perspective. The reason is the inherent connection between the formation of the non-treaty sources of international law and state interest that makes it difficult, if not impossible, to assess state practice or opinio juris in the case of altruistic obligations. The book further demonstrates this finding by looking at two cases in point: Human rights and humanitarian exceptions to the prohibition of force. As opposed to the majority of existing works on the subject, State Interest and the Sources of International Law takes a bigger-picture approach to a number of distinct problems in international law scholarship by looking at the building blocks of international relations on the one hand, and merging this with sources doctrine on the other. It will be of interest to researchers, academics, and students in the fields of international law, human rights, international relations, political science, legal philosophy, and legal theory.

This book provides a comprehensive analysis of an often neglected, misunderstood and maligned source of international law. Article 38(1)(c) of the Statute of the International Court of Justice sets out that the Court will apply the 'general principles of law recognized by civilized nations'. This source is variously lauded and criticised: held up as a panacea to all international law woes or denied even normative validity. The contrasting views and treatments of General Principles stem from a lack of a model of the source itself. This book provides that model, offering a new and rigorous understanding of Article 38(1)(c) that will be of immense value to scholars and practitioners of international law alike. At the heart of the book is a new tetrahedral framework of analysis - looking to function, type, methodology and jurisprudential legitimacy. Adopting an historical approach, the book traces the development of the source from 1875 to 2019, encompassing jurisprudence of the Permanent Court of International Justice and the International Court of Justice as well as cases from international criminal tribunals, the International Criminal Court and the World Trade Organisation. The book argues for precision in identifying cases that actually apply General Principles, and builds upon these 'proper use' cases to advance a comprehensive model of General Principles, advocating for a global approach to the methodology of the source.

This book examines whether international agreements between non-state actors can be identified as a source of international law using objective criteria. It asks whether, beyond Article 38 of the Statute of the International Court of Justice, there is a system of rules, processes, beliefs or semantics by which these agreements can be objectively identified as a source of international law. Departing from the more usual state-centric analysis, it adopts postmodern legal positivism as its analytical tool. This allows for the reality that international law-making takes place in subjective social landscapes. To test the effectiveness of this approach, it is applied to agreements between petroleum agencies and corporations which allow two or more states to exploit disputed resources across boundaries looking in particular at arrangements involving China, Vietnam and the Philippines. By so doing it illustrates an alternative way that states can manage disputes, without having to resort to conflict. It will appeal to both scholars and practitioners of public international law, as well as civil servants.

History of International Law · Foundations and Principles of International Law · Sources of International Law · Law of Treaties

Sources of State Practice in International Law is a descriptive bibliography of both electronic and printed sources of information containing the text of treaties and the record of diplomatic activity of important jurisdictions around the world. As such, it includes an up-to-date description of national treaty portals and other valuable Internet-based sources. At the same time, it also includes descriptions of printed sources providing access to treaties and official diplomatic documentation difficult to locate in standard compilations. In addition, this work includes a narrative section for each jurisdiction summarizing issues related to treaty succession and treaty implementation in municipal law. Sources of State Practice in International Law is an indispensable reference for researchers in both international law and international relations. Contributors: Jennifer Allison, Martin Bouda, Rob Britt, Talia Einhorn, Victor Essien, Gabriela Femenia, Ralph F. Gaebler, Susan Gualtier, Ryan Harrington, Carole L. Hinchcliff, Marci Hoffman, Vera Korzun, Jootaek (Juice) Lee, Joseph Luke, Evelyn Ma, Teresa M. Miguel-Stearns, Dana Neacsu, Kara Phillips, Sunil Rao, Mary Rumsey, Alison A. Shea, Maria I. Smolka-Day, Suzanne Thorpe and Beatrice Tice